compost facility design

custom solutions for commercial operations


SMARTER DESIGN FOR FASTER, BETTER COMPOST 

Green Mountain Technologies was founded in 1992 and has been designing and installing state of the art composting systems for more than twenty-five years. GMT has designed facilities for municipal and commercial clients as well as agricultural applications. We have designed facilities for as little as 1 ton per day all the way to facilities processing 500 tons per day or more. Our recent clients include the City of Phoenix, EnviroSmart Compost Facility outside Vancouver, BC and Recology Waste Solutions, and Dirt Hugger, Portland Metro just to name a few. Whether you’re looking for someone to design your entire system, or just need a second pair of eyes on your current project, GMT is here to help.
Get a Quote

Facility Tour
Facility Design Flyover
 

CUSTOM COMPOST FACILITY DESIGN

Our design philosophy revolves around the concept of using a compact footprint to reduce land area and capital costs and high rate processing to get maximum throughput.  GMT has four different design approaches that will fit your facility needs including Aerated Static Pile (ASP) with either above or below grade piping, and Radial ASP (rASP) using automated telescoping conveyors to load the aeration zones. Turning and aeration provides the fastest composting.  Turned Aerated Pile (TAP) combines turning and aeration in a rectangular format and Circular Turned Aerated Pile (cTAP) that reduces land area requirements compared to traditional TAP systems. Our design team has a combined experience of over 75 years in the industry. Michael Bryan-Brown, Jeff Gage and a team of support engineers and CAD technicians will provide the composting expertise for your project.  GMT can support your civil and mechanical engineers to get the details of your system right the first time.

Learn More

PRE-ENGINEERED ASP SYSTEMS

GMT is now offering Pre-Engineered Aerated Static Pile (ASP) packages with capacity between 230 and 1850 tons of compost.  These designs include GMT’s WebMACS system, temperature probes, a blower and a manifold. You supply a perforated aeration pipe, an impermeable surface, electricity, and concrete lock blocks and the system is ready to go. 

Learn More
 
 

COMPOST FACILITY UPDATES AND IMPROVEMENTS

Facilities that have been in operation for 5 years or more have discovered challenges with clogged aeration systems and drainage, corrosion, odor containment and treatment, waste water treatment and reuse. GMT has facilities that have been in operation for 25 years that have met or overcome these challenges. GMT can also provide equipment sizing, process flow optimization analysis, biofilter and biofilter media design.

PERMITTING AND ENVIRONMENTAL IMPACT STATEMENTS

GMT has experience designing and permitting large-scale facilities in the US and around the world. Current active projects include Canada, Ecuador and New Zealand. Each country and State has a unique set of standards to minimize environmental impacts from composting.  GMT has knowledge of best available control Technologies (BACT) for composting. GMT also has extensive overlap with operators at our compost facilities which gives us experience with approaches to such challenges as dust mitigation, odor control, fire suppression and management, leachate treatment and reuse.  GMT can provide the industry expertise to help your firm prepare informed permit applications and EIS reports.

 
 

SMARTER DESIGN FOR FASTER, BETTER COMPOST 

Green Mountain Technologies was founded in 1992 and has been designing and installing state of the art composting systems for more than twenty-five years. GMT has designed facilities for municipal and commercial clients as well as agricultural applications. We have designed facilities for as little as 1 ton per day all the way to facilities processing 500 tons per day or more. Our recent clients include the City of Phoenix, EnviroSmart Compost Facility outside Vancouver, BC and Recology Waste Solutions, and Dirt Hugger, Portland Metro just to name a few. Whether you’re looking for someone to design your entire system, or just need a second pair of eyes on your current project, GMT is here to help.
Learn More
 

PRE-ENGINEERED ASP SYSTEMS

GMT is now offering pre-engineered packages for customers who have from 1-25 tons per day of organic waste.  This 3 zone design uses pipe on grade which allows any existing impermeable surface to be converted into an ASP system.  The  ASP pad is divided into three aeration zones or bays.  The system can be configured for positive, negative or reversing aeration depending on the site and air quality needs. All you need to provide is power and concrete lock blocks and the system is ready to go.

Learn More
 

COMPOST FACILITY UPDATES AND IMPROVEMENTS

Facilities that have been in operation for 5 years or more have discovered challenges with clogged aeration systems and drainage, corrosion, odor containment and treatment, waste water treatment and reuse. GMT has facilities that have been in operation for 25 years that have met or overcome these challenges. GMT can also provide equipment sizing, process flow optimization analysis, biofilter and biofilter media design.

 

PERMITTING AND ENVIRONMENTAL IMPACT STATEMENTS

GMT has experience designing and permitting large-scale facilities in the US and around the world. Current active projects include Canada, Ecuador and New Zealand. Each country and State has a unique set of standards to minimize environmental impacts from composting.  GMT has knowledge of best available control Technologies (BACT) for composting. GMT also has extensive overlap with operators at our compost facilities which gives us experience with approaches to such challenges as dust mitigation, odor control, fire suppression and management, leachate treatment and reuse.  GMT can provide the industry expertise to help your firm prepare informed permit applications and EIS reports.

Client Need
The City of Phoenix selected the design team of Green Mountain Technologies and AW Architects in August of 2014 to design the new Phoenix Compost Facility project.

Approximately 50% of the material in the waste stream of the adjacent transfer station is biodegradable and potentially eligible for composting at the new facility. Composting could achieve a significant amount of material diversion from the city landfill and a large reduction in hauling costs to the City of Phoenix. The facility is also seen as a magnet for attracting other integrated technologies to the Resource Innovation Campus (RIC) master plan for greater waste diversion.

GMT’s Solution
GMT proposed using a cutting-edge approach to composting by developing mass turned aerated pads with reversing air flow management. This concept allows municipal compost projects to process large amounts of compost while minimizing footprint, water and energy usage. The biggest challenge was coming up with systems to irrigate and cool the compost piles in the hot desert climate.

The capacity of this system was developed in phases, this first phase was for 55,000 TPY, and implemented for $12.5 million including all required infrastructure, plus processing equipment, the second phase will expand the facility to 110,000 TPY as shown in the drawing above, and the final site capacity 220,000 TPY by expanding directly to the east from the second phase, and adding shade canopies where customers unload.